This isn't true. Old motherboards are used to have 20Pin connectors, nowadays even on the most basic motherboards you will have a 24 pin connector(Sample). However most of the times a 20Pin connector is enough for a motherboard what has a 24 pin connector.
Anyway the plus 4 pins is for the PCI-e slot, it gives more "craft" for the that line.
The 460W PSU is enough, I'm using a GTX670OC and a 3770k at 4,5Ghz with a Seasonic x560 PSU, and it only eats 350W from the wall at max, the a 460W PSU with your current config with a GTX660 is enough. Maybe later you should change it to a better quality one, but you don't have to care about it right now.
So what will be the next country where your goverment can spend billions of dollars from your money to a thing called "war"? I just leave it here, without any further comment.
Read the blue flag part... It is retarded, if you want to overtake a lapped car it is only your response to do it safely, the lapped car doesn't have to do anything... If it hit you or you hit it, it is only your fault.
some british youtube game-tester(or something like this) but the yogscast guys have a bigger fanbase, so it might be better idea to do the marketing on their channel